The Wacker Neuson Flange Nut is a genuine OEM component designed for the HIF 690 Flameless Air Heater series. Sourced directly from Wacker Neuson, this is the exact part specified for these machines — giving you full confidence in fit and function right out of the box. It is compatible with HIF 690 units across both the standard and Kubota Engine configurations, covering a wide range of fleet builds in this heater family.
Key Features
- OEM-Grade Fastener Integrity — Manufactured to Wacker Neuson's exact torque and dimensional specifications, so the flange seats correctly and holds without backing off under thermal cycling.
- Drop-In Hardware Replacement — Threads and flange diameter match the original mounting point exactly, letting you install and torque to spec without chasing threads or shimming.
- Broad HIF 690 Coverage — Fits both the standard HIF 690 Flameless Air Heater and the Kubota Engine variant, making it a practical stock item for mixed HIF 690 fleets.
- Thermal Cycle Resistance — Heater environments expose fasteners to repeated heat and cool-down stress; OEM-specified hardware is selected to hold clamp load through those cycles rather than fatiguing prematurely.
- Verified Part Number — Order with confidence knowing 5100028296 is the Wacker Neuson-assigned number for this application — no cross-referencing guesswork required.
A flange nut is a standard hex nut with an integrated wide-diameter collar (flange) that distributes clamping load across a broader surface area without the need for a separate washer. In a flameless air heater like the HIF 690, fasteners like this one secure critical components exposed to vibration and heat, maintaining proper assembly tension over time. When a flange nut wears, strips, or is substituted with an incorrect size, clamp load is compromised — leading to loose assemblies, component movement, and potential damage to the parts it was meant to hold in place.
Part Details
| Part Number | 5100028296 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flange Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HIF 690 Flameless Air Heater | HIF690 | 5100017599, 5200021915 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
